CAIRUTE Digital Family Wireless Bluetooth Stereo Headphone LCD Display with Built-in FM Radio and MP3 Music Player Hands-free Headset for Sports Running Cycling & Gym/exercise 100% brand new with bluetooth function and popular tyrant gold color, convenient to usewith phones and computers. It is not just a wireless headset but also a mp3, you can use it when you running, cycling, playing other sports, get rid of the lines plagued. Equipped with audio cable ,the receiver can be used as a wired earphone, convenient to operate. Listen to MP3 from SD card and TF card (not included). With Lien-in socket, it can be used as wired headphone while connect the 3.5mm plug cable. It's perfect Wireless Earphone Headphone,provides infinite enjoyment, Suitable for: Running, cycling, playing, etc.